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Table 3 Mean Difference in LS Means (95% CI) for SKAMP Scales by Optimized Dose Group*

From: A 13-hour laboratory school study of lisdexamfetamine dimesylate in school-aged children with attention-deficit/hyperactivity disorder

LDX Dose Group SKAMP-D SKAMP-A Quality of Work Total
30 mg/d (n = 46) -0.70 -0.59 -0.60 -0.73
  (-0.88, -0.52) (-0.79, -0.40) (-0.78, -0.42) (-0.87, -0.59)
50 mg/d (n = 47) -0.68 -0.61 -0.67 -0.74
  (-0.84, -0.52) (-0.78, -0.45) (-0.81, -0.54) (-0.86, -0.62)
70 mg/d (n = 20) -0.96 -0.89 -0.68 -0.99
  (-1.30, -0.63) (-1.15, -0.64) (-0.94, -0.42) (-1.24, -0.74)
  1. LDX: lisdexamfetamine dimesylate; LS: least squares; SKAMP: Swanson, Kotkin, Agler, M-Flynn, and Pelham scale; D: deportment; A: attention; CI: confidence interval
  2. *Negative scores indicate improvement relative to placebo.